空欄

1. Origins, structure, and basic meaning

• Structure: 空欄 is read くうらん and means a blank or empty field in text or a form.
• Basic usage: It is used for submitting an item left empty and for choosing a word that fits a blank in a sentence.

2. Common pitfalls and similar expressions

• Leaving something blank
  • 空欄のまま means leaving a field in its blank state.
• Filling a blank
  • 空欄に合う言葉 refers to a word that fits in the blank.